/*
 * Copyright (C) 2020 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.google.android.exoplayer2.ext.cronet;

import static com.google.common.truth.Truth.assertThat;

import android.net.Uri;
import androidx.test.core.app.ApplicationProvider;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import com.google.android.exoplayer2.testutil.DataSourceContractTest;
import com.google.android.exoplayer2.testutil.HttpDataSourceTestEnv;
import com.google.android.exoplayer2.upstream.DataSource;
import com.google.android.exoplayer2.upstream.HttpDataSource;
import com.google.common.collect.ImmutableList;
import java.util.Map;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import org.junit.After;
import org.junit.Rule;
import org.junit.runner.RunWith;

/** {@link DataSource} contract tests for {@link CronetDataSource}. */
@RunWith(AndroidJUnit4.class)
public class CronetDataSourceContractTest extends DataSourceContractTest {

  @Rule public HttpDataSourceTestEnv httpDataSourceTestEnv = new HttpDataSourceTestEnv();
  private final ExecutorService executorService = Executors.newSingleThreadExecutor();

  @After
  public void tearDown() {
    executorService.shutdown();
  }

  @Override
  protected DataSource createDataSource() {
    CronetEngineWrapper cronetEngineWrapper =
        new CronetEngineWrapper(
            ApplicationProvider.getApplicationContext(),
            /* userAgent= */ "test-agent",
            /* preferGMSCoreCronet= */ false);
    assertThat(cronetEngineWrapper.getCronetEngineSource())
        .isEqualTo(CronetEngineWrapper.SOURCE_NATIVE);
    return new CronetDataSource.Factory(cronetEngineWrapper, executorService)
        .setFallbackFactory(new InvalidDataSourceFactory())
        .createDataSource();
  }

  @Override
  protected ImmutableList<TestResource> getTestResources() {
    return httpDataSourceTestEnv.getServedResources();
  }

  @Override
  protected Uri getNotFoundUri() {
    return Uri.parse(httpDataSourceTestEnv.getNonexistentUrl());
  }

  /**
   * An {@link HttpDataSource.Factory} that throws {@link UnsupportedOperationException} on every
   * interaction.
   */
  private static class InvalidDataSourceFactory implements HttpDataSource.Factory {
    @Override
    public HttpDataSource createDataSource() {
      throw new UnsupportedOperationException();
    }

    @Override
    public HttpDataSource.RequestProperties getDefaultRequestProperties() {
      throw new UnsupportedOperationException();
    }

    @Override
    public HttpDataSource.Factory setDefaultRequestProperties(
        Map<String, String> defaultRequestProperties) {
      throw new UnsupportedOperationException();
    }
  }
}
